Forecast first: 7,808 at T+20

IUVO's governed 20-trading-day central estimate is 7,808, or +2.25% from the September 9 S&P close of 7,636.36. The forecast begins at the actual close and projects the evolution of deviation from the fitted reference trajectory.

Narrative intervention: NO — production action RETAIN. The separate reconstructed early-warning layer is currently ELEVATED with JOINT architecture. Here, warning means increased evidence of a downside turning point or material deterioration from the current market process—greater attention to Cascade and Major Abrupt Impulse downside paths. It is not a general volatility alert and does not mean that a decline is certain. It challenges the distribution of plausible paths without cancelling the governed production forecast.

Current S&P

7,636.36

September 9, 2026 close

20-Day Forecast

7,808

+2.25% from anchor

20-Day Uncertainty

±219

historical residual SD

Early-Warning State

ELEVATED

74.33% reconstructed estimate

Warning Architecture

JOINT

market 79.1 · narrative 78.4

Long-Term S&P 500, Fitted Reference, and Governed 20-Day Forecast

Historical actual and fitted reference terminate at the same September 9 observation. The governed V26 forecast begins at the actual close; the uncertainty cone is shown only on this production chart.

Production interpretation: the fitted line is a long-run reference, not a target to which the market jumps. The red path is the governed V26 forecast. At T+20 the central estimate is 7,808, with ±1 SD approximately 7,589 to 8,027.

September 9 Production State

Baseline Failure Probability

30.1%

production V26

Qualified Shocks

4 detected

Policy Regime

OPTIMISTIC

regime code 2

Separation rule: production trajectory and special-cause early warning are complementary products. An elevated warning means alternative processes deserve more attention; it does not mechanically cancel the central forecast.

Current Early-Warning State

What is the warning for? In this research layer, the warning is directional: it estimates evidence that the market may be approaching a downside turning point or materially deteriorating process relative to ordinary continuation. NOMINAL means no strong downside-warning configuration; WATCH means emerging evidence; ELEVATED means materially abnormal downside-warning evidence; HIGH means the reconstructed estimate is in its most abnormal historical range. The warning changes the weight given to Normal, Cascade, and Major Abrupt Impulse paths; it is not a forecast that the market must fall.

Turning-Point Estimate

74.33%

P90 66.00% · P95 74.34%

60-Day Peak

86.66%

58 observations since peak

Warning History

recent activation

P95 days latest 20: 0

Research reconstruction: these F.2/F.3 values are generated by the new transparent MATLAB reconstruction. They should be evaluated prospectively before being treated as calibrated production probabilities.

Historical Context + Three Conditional Futures

Path	Machine-only	Analyst-conditioned weight	Interpretation
Normal continuation	25.67%	25.67%	Governed V26 production trajectory.
Cascade / material deterioration	37.32%	37.32%	Persistent material deterioration.
Major abrupt impulse	37.00%	37.00%	Faster special-cause nonlinear deterioration.

Hybrid-Cognition Scenario Controls

Analyst question: What do you know about the next 20 trading days that the historical data cannot know?

FEAR mean (lower = greater stress)

Optimism (lower = greater stress)

Geopolitical shock (higher = greater stress)

Evidence / confidence weight

Hybrid Challenge Index

transparent 0–100 index; not a calibrated probability

Narrative-Implied T+20 Shift

0 points

co-integration/persistent co-movement conditional translation

Slider movement changes both conditional scenario levels and analyst-conditioned likelihood weights. Historical S&P, fitted reference and the common September 9 anchor never move. This is a conditional co-movement translation, not proof of causality.

Five-Day Change-Domain Model Competition

Base-rate benchmark: 56.4% up-direction frequency at h=5. Skill is hit rate minus that base rate.

Model	Hit Rate	Skill vs Base	Sharpe
M5: Narrative Polarity	58.4%	+2.0 pp	1.60
M7: Ensemble	53.7%	-2.7 pp	0.94
M2: VECM	51.4%	-5.0 pp	0.99
M4: Momentum	49.1%	-7.3 pp	-0.90
M6: 20d Trend	48.0%	-8.4 pp	0.16
M3: Regime-Ensemble	47.0%	-9.4 pp	-0.03
M1: JA Forecast	45.1%	-11.3 pp	-1.05

The production trajectory remains a separate governed 20-day forecast. The h=5 horse race is displayed as comparative model evidence rather than as a substitute forecast.

F.3.2 Warning Memory

Event-Bounded Reference Findings

Event	Max Pre-Onset Estimate	P95 Activations	First P95 Lead
2023	17.8%	0	—
2025	47.0%	1	31 days
2026	70.7%	1	44 days

These three event-study values are carried forward from the documented bounded F.3.2 research findings pending re-estimation. They are not recomputed by the reconstruction because the original event-onset definitions were not present in the supplied production files.

Method & Governance

Production V26: last-close-anchored 20-day central trajectory and uncertainty cone. Reconstructed F.2/F.3: transparent special-cause challenge layer using empirical-percentile market/narrative scoring, warning memory, three path classes and analyst-conditioned scenario translation.

The Normal scenario is copied from the governed V26 central path. Reconstructed Cascade and Major Impulse paths are provisional conditional templates. Machine-only path weights and the reconstructed turning-point estimate are not presented as recovered coefficients from the lost F.2/F.3 model.

Prospective validation rule: save machine state, analyst inputs, evidence weight, hybrid challenge, architecture, subsequent market path, lead time and false-alarm outcome. Human judgment should earn a production role only through incremental out-of-sample value.

IUVO™ Research, Model-Risk & Use Disclosure. IUVO™ is an experimental forecasting and decision-support research system developed for research and educational use. Nothing on this page constitutes investment advice, a trading recommendation, an offer or solicitation, or a representation that a forecast, warning, scenario, model ranking, or analyst-conditioned likelihood will be realized. Financial markets are uncertain and can move materially for reasons not represented in the model.

Production versus research reconstruction. This September 9, 2026 edition distinguishes the governed V26 production trajectory from the reconstructed V26F.2/F.3 Early-Warning Lab. The F.2/F.3 layer reconstructs the documented research interface and behavior; it does not claim recovery of the original fitted F.2/F.3 equations or calibration. Its turning-point estimate, warning state, machine path weights, conditional path templates, and analyst-conditioned weights should therefore be treated as research quantities requiring prospective validation.

Meaning of warning. A warning is specifically a downside special-cause / turning-point warning: evidence that a Cascade/material-deterioration or Major Abrupt Impulse path deserves more probability mass relative to Normal continuation. ELEVATED or HIGH does not mean a market decline is certain, does not mechanically cancel the governed V26 central forecast, and should not be interpreted as a stand-alone trading signal. Narrative relationships are interpreted as association, co-integration, persistent co-movement, state or challenge information—not proof of causality.

Comparability. Pre-August 5, 2026 performance figures were produced under earlier model definitions and are not directly comparable with the current production configuration. Historical performance, fitted relationships and event studies do not guarantee future predictive performance.